The paper discusses some developmeDts in the coordinate parti tioning method for the dynamic analysis of constrained/closed-loop multibody systems. First, the method is reformulated to a more compact form. Then, a simple and reliable projective criterion for choosing thc best coordinates from the redundant oncs is proposed, and some advantages arc pointed out that may arise in the method by app...

The occurrences of trihalomethanes (THMs), haloacetic acids (HAAs) and heterotrophic bacteria were monitored in five small water systems over a nine-month period to investigate the association between HAA degradation and heterotrophic bacteria populations. The sampling sites were chosen to cover the entire distribution network for each system. An inverse association between heterotrophic bacter...

In VISIONS the segmentation a lgor i thms receive input from a d i g i t i z e d co lo r image as an array of p i x e l va lues , and generate output as a layered graph of symbo l i ca l l y named reg ions , boundaries, and endpoints — each w i t h t h e i r desc r i p t i ve a t t r i b u t e s . This processed sensory data provides the i n i t i a l input to the model -bu i ld ing system of V...

Hsu recently proposed a new interconnection topology called Fibonacci cubes. ln this correspondence rve show that his routing and broadcasting algori thms do not work correctly and that a routing algorithm by Liu and Hsu does not run in optimal compu_ tation time. we also describe simple optimar deadlock-free routir,s and broadcasting algorithms. The routing algorithm sends ̂ -"rI sa.ge from a s...

Given a tree each of whose terminal vertices is associated with a given poin t in a compact metric space, the problem is to optimally associate a point in this space to each nonterminal vertex of the tree. The optimali ty criterion is the minimizat ion o f the sum of the lengths, in the metric space, over all edges of the tree. This note shows how a dynamic programming solution to this problem ...

The presence of trihalomethanes (THMs) in drinking water has attracted the attention of both researchers and professionals, because of the harmful effects of these substances on human health. A multiple regression model was developed to estimate THM concentrations in finished drinking water, using data from the Menidi Treatment Plant of Athens. A number of routinely measured characteristics--in...

Significant fractions of bromine-substituted disinfection byproducts (DBPs)—particularly trihalomethanes (THMs)— have been observed to form during treatment of water from the Missouri River. THM speciation was also noted to follow a seasonal pattern during a 2.5-year period, during which samples were collected multiple times per month. Although some treatment processes were effective at reducin...